Milk-cooler



v(No Model.)

W.*E. LINCOLN. Y Milk Cooler.

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l i s g u 0L IPM/ENTER..

YUNITEID STATES PATENT OFFICE.

WILLIAM E. LINCOLN, OF WARREN, MASSACHUSETTS.

MILK-COOLER.

SPECIFICATION formingpart of Letters Patent No. 229,262, dated June 29, 1880.

Application filed March 27, 1880. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM E. LINCOLN, of Warren, county of Worcester, State of Massachusetts, have invented an Improvementin 'MilkOoolers, of which the following descripdetached. Fig. 5 is a top-plan view, on a reduced scale, ofthe milk-vessel.

The milk-vessel a, which may be of large size, is shown as provided with a channel, b, in its lower portion, extending Well up into the body of the vessel, suoli a channel nearly doubling the surface to be acted upon by a cooling material surrounding the said vessel.

It is obvious that any desired number of chan-v nels b can be made in the vessel, so as materially to increase its coolingsurface.

By cxtendin g the channel b only part of the way to the top of the can the upper surface of the said channel is available as cooling-sue face, the milk extending over the top of the said channel, and by extending the channel across from side to side the cooling-fluid is allowed a free circulation, neither of which advantages are attained by a tube or chamber extending up from the bottom through the interior of the can.

The cover c to thevessel a is shown as an icereceptacle, having an inclined bottom, d, to conduct away the moisture of condensation, as shown in my United States Patent No. 219,358. It is supported on lugs c upon the outside of the vessel a, which engage the lower edge of the cover to hold it inproper position to allow the mois-ture of condensation on the bottom thereof to ow freely over the edge ofthe vessel b. rEhe cover sustained in this way allows a proper ventilation of the contents of the can, and in order to insure that there shall always be a passage forthe gases I provide a suitable number of holes, f, in the upper part of the vessel between its edge and the highest line to which the milk will rise.

The lugs c are provided with curved shoulders e', to enable the cover to be readily placed over them, and then held in proper'position without admitting of lateral movement on the vessel a.

At one of the sides of the can is placed a pocket, g, into which the cream may be caused to flow after it has risen to the surface by introducing any displacing body iii the liquid, preferably the cream-removing device o, as shown in Figs. 3 and 4. This device is shown as a cylindrical vessel, h, having a sharp or conical bottom to enable it to pass through the cream with slight disturbance. When nearly all the cream has iiowed into the pocket g it becomes difficult to prevent skim-milk from also entering the said pocket, and then the cream-removing device is properly manipulated to cause the cream to pass over the edge of a flaring collar, i', thereon, whence it passes through an opening, 7c, into the said vessel l1., in which it may be removed.

The edge of the pocket g is placed at a suitable level to allow the liquid contents of the vessel on to iiow into it before rising to the ventilating holes f, and the said pocket, besides serving to receive the cream, as hereinbefore described, might also be used to receive liquid of condensation from the bottom of the cover o in case the said liquid does not pass over the edge of the vessel a.

rEhe liquid contents may be removed from the pocket g by any suitable pipe, an orifice, m, being provided therefor.

I am aware that milk-cooling vessels have been used provided with tubes or chambers extended up through the interior thereof; but in such the cooling-fluid does not circulate freely, but will soon become of the temperature of the milk or surrounding duid, and the upper surface of the said chamber or space is not utilized as a cooling-surface.

I claim- 1. In a creaming apparatus, a channeled milk containing vessel, an overiiiow lpocket IOC a displacing body, substantially as and for the purpose set forth.

3. In a milk-tank, the lugs e, having` curved portions e', and adapted to receive and sustain the cover, substantially in the manner shown.

and desor bed.

4. The cream-removing cylinder, Combined with the collar i thereon and opening k, substantially as and for the purpose described.

In testimony whereof I have signed lnyname to this specification in the presence of two subscribing witnesses.

WM. E. LINCOLN.

Witnesses J os. P. LIVERMORE, N. E. G. WHITNEY. 

